Example pseudocode (Node.js/Express):
app.get('/api/v1/certificates/clientca', authorize('certificate_view'), async (req, res) =>
const filePath = '/etc/ssl/certs/clientca.pem';
if (!fs.existsSync(filePath)) return res.sendStatus(404);
res.setHeader('Content-Type', 'application/x-pem-file');
res.setHeader('Content-Disposition', 'attachment; filename="clientca.pem"');
fs.createReadStream(filePath).pipe(res);
// audit log: userId, req.ip, timestamp, 'clientca.pem'
);
icacls clientca.pem /inheritance:r /grant:r "SYSTEM:(R)" "Administrators:(R)" "Users:(R)" clientca.pem download
Place clientca.pem in the same folder as your .ovpn config. The config should reference: Rate limiting: 10 downloads/min per user
ca clientca.pem
cert client.crt
key client.key
If you are an employee or contractor: